Finding the Fourth Proportional to 992,040.20, 1,368,954.18 and 556,433.60
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Solution
The fourth proportional to 992,040.20, 1,368,954.18 and 556,433.60 is: 767,843.99
Step by Step Solution
- Step 1: Write the proportion equation
992,040.20 : 1,368,954.18 = 556,433.60 : x - Step 2: Convert to fraction form
992,040.20/1,368,954.18 = 556,433.60/x - Step 3: Cross multiply
992,040.20x = 1,368,954.18 × 556,433.60 - Step 4: Simplify right side
992,040.20x = 761,732,102,612.45 - Step 5: Solve for x
x = 761,732,102,612.45/992,040.20 - Step 6: Final answer
x = 767,843.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.